Improvement in lubricators



tatted ,States @einer @titre IVILLIAM PRATT, OF PROVIDENCE, RHODE ISLAND, AND N. BANGS IYILLIAMS, OF NEW YORK N. Y., ASSIGNORS TO ADBY A. IVILLIAMS, OF BROOKLYN, NEW YORK-.-

Letters Patent No. 110,677, dated January 3, 187:11 Y

v IMPROVEMENT IN LUBRIVCATORHS.`

The Schedule referred to in these Letters Patent and making pari:l of theA s-ame. Y 'y j y i' To all whom it may concern:

Bc it known that we, the Subscribers, to wit, VILL- IAM PRATT, of the city and county of Providence and State of Rhode Island, and N. BANGS WILLIAMS, of the city, county, and State of New York, have made certain Improvements in Oil-,Oups used in the lubrication of engines and machinery; and in order that' others skilled may understand the nature and method ot' construction of vour invention, we hereby describe the same, and illustrate it by the accompanying drawings, which are referred to herein by letters and figures marked thereon. l

Our invention has for its objects- First, making the cover of the oil-cup the means of operating the device which graduates the flow of oil.

Second, to make this part of the device the means of securing` the cover to the cup, so that it will not fall oit' in filtering or by jarring, as it is liable to do when not thus secured.

The third object isto furnish a ltering and graduating packing, which will allow the-use ofthe heavier animal or sh-oils,-or the lighter petroleum-oils, or mixtures of. both.

XVe have found in practice that packings composed of wholly fibrous material, which, under compression, work satisfactorily with sperm and lard-oils, cannot, without great ditticulty, be sufficiently compressed to use the petroleum or mixed oils, as petroleum and lard, with eco1iomy-t.c.,a cup which can be perfectly regulated, with moderate compression, to use sperm-oil, will allow a mixtur'e of petroleum and sperm or lard-oils to run too-freely through, even where the pressure upon an entirely fibrous packing is carried to its greatest practical point, and this is the case even where the mixture is of the same specific gravity as that of clear sperm-oil; and to furnish a packing which shall meet these conditions, and can easily be screwed down, is what we have achieved in this part of our invention.

Description of Drawings. Figure l represents, in perspective, all parts ofthe cup, as made for a shafting-hanger.

The vessel A A is of glass or metal. I5 is a metal stem passing through the glass, provided with the head c and the nut E to fasten it to the vessel, gaskets oi" leather or other suitable material heilig interposed in the joints to render them oiltight. I

The oil-duct is through the center of this socket, and is threaded to reccivethe regulating-screw hl and the pipe J. This screw F is provided, on its threaded part, with a slit cut deeper at its point and growing shallowcr as it runs upward. It is also slit in the point to form a spring against the female thread of the main oil-duct in the socket, as secu in Figure 2, at S and t.

The regulating-screw vEk is divided into twoparts by the broad head. G, the lower part threaded and the upper part heilig plain, and extending upward through the cover C., This 'upward lstaff is slit centrally A,

through it, to receive the slotted link VI, shown in the opposite view inV iig .f2, this latter beiiig'coniined to On the slotted screw F is loosely iitted a perforated cylinder of cork, H, slit with any requisite number of slits, seen at d d, fic. l, made preferably by a gang of small circular saws7 and about the distance apart shown by the drawing. i

Figure et shows this cork-cylinder both in side elevation and a top view, with the upper layer of cork removed to show, at t (Z, the .form of the slots and theirconnection .with the central hole, which receives the compressing-screw li. This method of slitting the cork, it will be perceived, leaves a certain portion ot' the cylinder solid, which always retains sutiicient permanent elasticity tospread the slits apart, when the pressure of the screw is lessened. i

The form of this packing maybe varied from that which has been just described. Forinstance, the cylindcr may beformcd of thin disks of cork, laid one` upon the other tili a sutiicient number is used to make a slightly-elastic cylinder. may be groovcd on one surface, each grooved face lying next the plain surface ofthe succeeding disk. A pile or cylinder of this character is shown iu section in iig. 2, and also in top view and section in Figure 5.

The parts which have not been referred to already arezA socket ot1 metal, D, figs. l and 2, and which, as it is merely ornamental, is not further described; the oil-passage or duct K, seen in fig. 2; and the gaskets c c c' (l, seen in section in tig. 2.

The operation ot the parts is as follows:

Snpposing the cup to be tilled with oil, the iiow is regulated with the greatest# accuracy by sirnply'turning the cover' as you would an ordinary screw, because the link I tits the slots in the cover' and the slit in the screw-staff, and necessarily turns the regulating-screw with it; and, to till the cup, the slot in the link allows the cover to be raised and turned aside without disturbing the gradhating-point at which the screw is turned down, and the enlarged head of the link and the pin c connects the parts together'.

The pressure of the broad head G of the screw Again, these diskspon the cork diminishes the slits as itis screwedV own, so that the oil percolates fast or slowly through hem into the tapering slot in the. screw, and thence hrongh the oileduct K to the journal or shaft.

We are aware that compression of brons materials s used in oil-cups, both patented and unpament'ed;`

herefore we make no broad claim to this.

lVe are aware, also, that the broad-headed screw, vith the tapering slot as a secondary and graduating il-duct, and the compression of fibrous disks perfoated to receive thisA screw, are used in the oil-cup of `BANGS VILLIAMS, patented August 11, 1868; herefore we make no claim to these features as shown ind described in this oil-cup.

Vv'e `would further remark that the cork-cylinder nay be modified by perforating the cork to receive -he screw, as above shown and seating the lower end f it in a conical seat, andL making the slits perpenlicularly in the cork, so that endwise pressure will gather the slits more closely; but the method we have first described has been found best in practice.

From the above it will be seen that what we claim as novel and useful is l. Making the cover of .the oil-cup the means of l turning the regulating-screw by means of the slotted scre\vstafi`,the slotted link, and slotted cover, and at lVitnesses:

J CHN TURNER, WM. W. EDDY. 

